ArithmeticException.class,
          () -> {
            UnsignedInteger unused = UnsignedInteger.fromIntBits(a).dividedBy(UnsignedInteger.ZERO);
          });
    }
  }

  public void testMod() {
    for (int a : TEST_INTS) {
      for (int b : TEST_INTS) {
        if (b != 0) {
          UnsignedInteger aUnsigned = UnsignedInteger.fromIntBits(a);

    for (long a : TEST_LONGS) {
      assertThrows(
          ArithmeticException.class,
          () -> UnsignedLong.fromLongBits(a).dividedBy(UnsignedLong.ZERO));
    }
  }

  public void testMod() {
    for (long a : TEST_LONGS) {
      for (long b : TEST_LONGS) {
        if (b != 0) {
          UnsignedLong aUnsigned = UnsignedLong.fromLongBits(a);

    File parent = getTestFile("ascii.txt");
    assertTrue(parent.isFile());
    File file = file(parent, "foo");
    assertThrows(IOException.class, () -> Files.createParentDirs(file));
  }

  public void testMove() throws IOException {
    File i18nFile = getTestFile("i18n.txt");
    File temp1 = createTempFile();
    File temp2 = createTempFile();

    Files.copy(i18nFile, temp1);
    moveHelper(true, temp1, temp2);

[]uint{1, 2, 0, 0}, }, { []uint{1, 2}, 2, []uint{1, 2}, }} for i, tt := range examples { got := (&Nat{tt.in}).expand(tt.n) if len(got.limbs) != len(tt.out) || got.Equal(&Nat{tt.out}) != 1 { t.Errorf("%d: got %v, expected %v", i, got, tt.out) } } } func TestMod(t *testing.T) { m := modulusFromBytes([]byte{0x06, 0x80, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x0d}) x := natFromBytes([]byte{0x40, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x80, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01}) out := new(Nat) out.Mod(x,...